> For the complete documentation index, see [llms.txt](https://docs.roboflow.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.roboflow.com/roboflow/roboflow-jp/datasets/dataset-versions/image-augmentation/augmentation-types/brightness-augmentation.md).
# Brightness Augmentation
画像の明るさにばらつきを加えて、照明やカメラ設定の変化に対してモデルをより頑健にします。選択した割合に応じて、画像を明るくする、暗くする、またはその両方を選べます。
## 例
元の画像
Brightness Augmentation を 10% 明るくに設定
Brightness Augmentation を 10% 暗くに設定
## FAQ
明るさは露出とどう違いますか？
Brightness augmentation では、すべてのピクセルに一定の値を加えることで、画像全体を均一に明るくまたは暗くします。
Brightness は相対的な強度を考慮しません。影とハイライトが同じようにずれるため、コントラストが失われる可能性があります。
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